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Finding the Fourth Proportional to 377,793.75, 521,355.38 and 208,027.47

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Solution

The fourth proportional to 377,793.75, 521,355.38 and 208,027.47 is: 287,077.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,793.75 : 521,355.38 = 208,027.47 : x
  2. Step 2: Convert to fraction form
    377,793.75/521,355.38 = 208,027.47/x
  3. Step 3: Cross multiply
    377,793.75x = 521,355.38 × 208,027.47
  4. Step 4: Simplify right side
    377,793.75x = 108,456,240,672.29
  5. Step 5: Solve for x
    x = 108,456,240,672.29/377,793.75
  6. Step 6: Final answer
    x = 287,077.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.